【摘要】 利用喜来登环球旅馆于1994年北岭地震中获得的强地震反应观测记录,初步识别了该旅馆结构恢复力的时变特性,分析了结构刚度在地震过程中的时变规律,并对该结构的表现做出初步解释。喜来登旅馆结构体系在立面上并不是均匀布置,于四层处发生较大改变,导致结构刚度发生变化。从初步识别结果上看,一至三层的刚度明显高于其他各层,三至九层刚度退化得最快,应该是结构刚度突变所致。该工作可作为进一步研究喜来登旅馆这类建筑结构实际抗震性能的基础。更多还原

【Abstract】 The time-variant properties of the restoring forces of a twenty-story reinforced concrete building structure,the Sheraton-Universal Hotel were identified preliminarily based on the strong motrons recorded in the 1994 Northridge California earthquake records in strumented in the Hotel.Furthermore the time-variant stiffnesses of the structure in different stories were obtained,and the behavior of the structure in the seismic process is also explained.The results in the paper provide a basis for the further researches on seismic properties to the reinforced conerctc framc structures srmilar to the Sheraton-Universal Hotel.更多还原